GMC 1995 Jimmy Owner's Manual page 238

NOTICE:
Spinning your wheels can destroy parts of your vehicle as well as
the tires. If you spin the wheels too fast while shifting your
transmission back and forth, you can destroy your transmission.
For information about using tire chains on your vehicle, see "Tire Chains"
in the Index.
Rocking your vehicle to get it out:
First, turn your steering wheel left and right. That will clear the area around
your front wheels. Then shift back and forth between REVERSE (R) and a
forward gear (or with a manual transmission, between FIRST (1) or
SECOND ( 2 ) gear and REVERSE), spinning the wheels as little as possible.
Release the accelerator pedal while you shift, and press lightly on the
accelerator pedal when the transmission is in gear. If that doesn't get you
out after a few tries, you may need to be towed out. Or, you can use your
recovery hooks, if your vehicle has them. If you do need to be towed out,
see "Towing Your Vehicle" in the Index.
Using the Recovery Hooks
Your vehicle may be equipped with recovery hooks. The recovery hooks are
provided at the front of your vehicle. You may need to use them if you're
stuck off-road and need to be pulled to some place where you can continue
driving.
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